Answer:
Killer T cells release enzymes that help destroy invading foreign matter (antigens), Helper T cells, on the other hand, stimulate another type of lymphocyte known as B cells. B cells produce antibody, which is a protein made in response to a specific antigen.
Answer:
D. Bear
Explanation:
The answer is bear because a bear is an animal. Everything but animals can carry out cellular respiration.
I believe the answer is C) is different lengths of time for different types of cells.
I think the answer is how much money has been spent to fight the diseases caused by the mosquitos
Phosphate, Nitrogen, & Nucleotides
